These dyno graphs represent just how much power is achieved from simple mods to a VR38DETT!

Owner, Kym, came to us in 2010, where we carried out “preliminary” dyno runs on his R35 GTR. We then replaced the turbo dump-pipes with Mercury Motorsport custom fabricated items (hand made incorporating high-flowed cat converters & fitted Willall Racing mid-pipes, but Kym still retained the standard rear exhaust section. Tuned with a Cobb Access Port, the R35 put out 336.6kw at all 4 wheels…

Recently, Kym’s GTR returned for more. This time we removed the Willall Racing mid-pipes & hand-fabricated our own & had them fitted. We also fitted a Willall Racing Titanium rear exhaust section & carried out a retune. The result was a whopping 379.4kw at all 4 wheels!

Full list of results/increases in power & torque between all stages are as follows: